<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>欢迎来到{$title}的学习</h1>
<h2>我是{$name}</h2>
<h3>每天坚持学习{$book}</h3>
<h4>我的年龄是{$age}岁</h4>
<h5>天空是{$color}的</h5>
</body>
</html>